Magnetic ore-separator



(No Model.) 2 Sheets-Sheet 1.

W. R. THOMAS.

MAGNETIC ORE SEPARATOR.

No. 4052624. Patented May 21, 1889.

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(No Model.) 2 SheetsSheet 2;

W. R. THOMAS.

MAGNETIC ORE SEPARATOR.

No. 403,624. Patented May 21, 1889.

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UNITED STATES PATENT OFFICE.

\VILLIAM R. THOMAS, OF CATASAUQUA, PENNSYLVANIA.

MAGNETIC ORE-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 403,624, dated. May21', 1889.

Serial No. 305,378. (No model.)

To all whom, it may concern.-

Be it known that I, WILLIAM R. THOMAS, of Oatasauqua, in the county ofLehigh and State of Pennsylvania, have invented a new and ImprovedMagnetic Ore-Separator, of which thefollowing is a full, clear, andexact description.

This invention relates to magnetic ore-separators, and has for itsobject to provide a magnetic ore-separator which will be effective inuse.

The invention consists in an ore-separator constructed and arranged ashereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a front view,in elevation, of the invention. Fig. 2 is aside view, in vertical section, 011 the line a: at, Fig. 1, with partsbroken away; and Fig. 3 is a side View of the invention, partly invertical section and broken away.

111 the upper and lower parts of a suitable frame, 1, are mountedpulleys or wheels 2, over which extends an endless belt, 3. Be neath theupper pulley 2 is located a magnet, 4, over the face of which extendsthe end less band 3. The relative position of the pulleys 2 to eachother and the magnet 4 is such that the face of the magnet and the periphery of the upper pulley 2 are about in the same vertical plane,while the lower pulley 2 is located at one side of a vertical planeextending through the magnet 4 and the upper pulley.

The result of the foregoing arrangement of positions is that the belt 3extends down over the face of the magnet 4., over a roller, 5, andextends inwardly at an angle of about seventy degrees, passing down overthe lower pulley 2, and up over the upper pulley 2. Beneath the lowerpulley 2 is located a hopper, G, to receive the concentrated ore as itdrops off of the belt 3, and adjacent to the roller 5, at the bottom ofthe magnetic field, is located the upper end of a chute, 7, for carryingoff the gangue.

Mounted in the top of frame 1 is a chute, S, to receive theunconcentrated ore, having its lower end located adjacent to the belt 3,

and below and at one side of the bottom of said chute 8 is adirecting-chute, 9, having its lower end terminating adjacent to thebelt 3, about opposite the upper end of the magnetic field. Connectingwith the upper portion of said chute 9, which is closed, is an air-tube,10, having a chamber, 11, in which is located an exhaust-fan, 12, fordrawing dust from the chute 9.

The operation of the device is as follows: Unconcent-rated ore is placedin the chute S, and drops onto the belt 3, passing over the upper pulley2. The ore is thrown from the belt 3,which is traveling about fourhundred feet a minute, against the directing-chute 9, breaking theparticles apart and by so doing avoiding clustering, which is veryobjectionable. After the particles of ore are thus broken apart, the oredrops down through the directing-chute S in a thin sheet to the face ofthe magnet, and is there attracted to the belt and adheres to it untilit is carried out of the magnetic field, when it drops into the hopper6. The gangue falls down vertically from the belt 3, onto and down overthe chute 7, to a suitable receptacle. As the unconcentrated ore isthrown from the belt 3 onto the directing-chute 9, the exhaustfan 12,driven by suitable power, carries away the fine dust in said chute 0,through the tube 10, and thereby being separated from the iron gives thelatterabetter appearance after it has been separated from the gangue.

The fan 12 and tube 10 are preferably located at the top of the chute 9and above the lower end of the chute S, as in this position the dust ismore thoroughly separated.

By means of this invention, constructed and arranged as herein setforth, ore may be effectively separated from the gangue.

I l avin g thus fully described my invention, I claim as new and desireto secure by Letters Patent 1. An ore-separator consisting of an endlessbelt mounted on upper and lower pulleys, a supply-chute having its loweropen end located above the upper pulley and endless belt, adirecting-chute closed at the top and open at its lower end opposite theupper pulley and endless belt, a magnet having its field located adjaccnt to and behind the vertically-descendin g portion of the endlessbelt,

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a chute having its upper end located adjacent to the bottom of the fieldof the magnet and in front of the endless belt, with a passage-waybetween the chute and belt, a hopper located beneath the lower pulleyand the endless belt, a suction air-tube connected to the closed top ofthe directing-chute, and an exhaust-fan. located in a chamber openinginto the suction-tube, substantially as shown and described.

2. In an ore-separator, a magnet, an endless belt passing over upper andlower pulleys and vertically downward over the field of the magnet, areceiving-chute having its lower open end located above the upper rollerand endless belt, a directing-chute having its lower open portionopposite the upper pulley and endless belt, a chute having its upper endlocated opposite the bottom of the magnetic field, with apassage-waybetween the endless belt and the chute, and a receptaclebeneath the lower pulley and endless belt, substantially as shown anddescribed.

3. In an ore-separator, the magnet 4, the endless belt 3, extending overthe upper and lower pulleys, 2, the latter being in different verticalplanes, and the belt 3,- moving downward over the magnetic field,passing over a pulley, 5, at the bottom of the magnetic field andextending rearward at an angle over the lower pulley 2, thereceiving-hopper 8, opening onto the belt 3, above the upper pulley 2,

end located opposite the belt 3, beneath the pulley 5, with apassage-way between the belt 3 and said chute 7, substantially as shownand described. 4. An ore-separator consisting of a vertica endless belt,a magnet having its field located behind the vertically-descendingportion of the endless belt, a receiving-chute opening onto the endlessbelt above its upper roller, a directing-chute with closed top open atits lower portion opposite the endless belt and its upper roller, achute having its upper end located opposite to the endless belt belowthe field of the magnet, with ,a passage-way between the belt and chuteand an air-exhaust tube, and mechanism connected with the upper end ofthe directing-chute, substantially as shown and described.

W. R. THOMAS.

Witnesses:

DA E]; WILSON, R. CLAY I-IAMERsL

